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SURFACE EFFECTS IN POOL BOILING.

Author(s) : ROY CHOWDHURY S. K., WINTERTON R. H. S.

Type of article: Article

Summary

SURFACE EFFECTS IN BOILING HEAT TRANSFER HAVE BEEN STUDIED WITH PARTICULAR EMPHASIS ON THE ROLE OF SURFACE ROUGHNESS AND SURFACE ENERGY. THE EXPERIMENTS FOR THE MOST PART USE A SIMPLE QUENCHING TECHNIQUE WITH METAL CYLINDERS (ALUMINIUM OR COPPER) IMMERSED IN SATURATED WATER OR METHANOL. IT IS SHOWN THAT CONTACT ANGLE HAS A VERY STRONG INFLUENCE ON TRANSITION BOILING, IMPROVED WETTING GIVING INCREASED HEAT FLUX AT A GIVEN SUPERHEAT. PROVIDED A CONSISTENT METHOD IS USED TO ROUGHEN THE SURFACE THEN ROUGHENING IMPROVES THE NUCLEATE BOILING HEAT TRANSFER.

Details

  • Original title: SURFACE EFFECTS IN POOL BOILING.
  • Record ID : 1986-1839
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 28 - n. 10
  • Publication date: 1985/10

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